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Nettie Stevens
Essay specific features
Written by:
John M
Date added:
September 17, 2013
Level:
Grade:
No of pages / words:
2 / 312
Was viewed:
4963 times
Rating of current essay:
Essay content:
She received
her B.A. in 1899 and her M.A. in 1900 at Stanford.
Nettie studied Tenebrio molitor beetles and found that unfertilized eggs in female beetles always contain an X chromosome. Sperm from male beetles contain either an X chromosome or a Y chromosome. She found that eggs fertilized by sperm carrying the X chromosome produce female beetles...
displayed 300 characters
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She found that eggs fertilized by sperm carrying the X chromosome produce female beetles. The combination of egg and Y-chromosome sperm produce male beetles.
Edmund Beecher Wilson, a biologist from Columbia University in New York City, made this same discovery at about the same time as Nettie. Nettie also established that chromosomes exist as paired structures in body cells...
displayed 300 characters
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